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Hillstone T-Series vs Zscaler Cloud Firewall comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Hillstone T-Series
Ranking in Firewalls
42nd
Average Rating
7.4
Number of Reviews
3
Ranking in other categories
No ranking in other categories
Zscaler Cloud Firewall
Ranking in Firewalls
36th
Average Rating
8.2
Reviews Sentiment
6.3
Number of Reviews
20
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2026, in the Firewalls category, the mindshare of Hillstone T-Series is 0.6%, up from 0.1% compared to the previous year. The mindshare of Zscaler Cloud Firewall is 1.0%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Mindshare Distribution
ProductMindshare (%)
Zscaler Cloud Firewall1.0%
Hillstone T-Series0.6%
Other98.4%
Firewalls
 

Featured Reviews

TahirMahmood - PeerSpot reviewer
IT Manager at Zubair Feeds
Is stable and has a user-friendly dashboard and a good interface
We installed Hillstone T-Series after a ransomware attack. The dashboard and user interface are very good We cannot secure a specific IP class with this firewall. Another loophole with Hillstone T-Series is that when we connect through WiFi and turn our hot spot on, all who connect through the…
Farzad Ebrahimi - PeerSpot reviewer
Senior Devsecops Cloud Cybersecurity Specialist at CGI
Cloud data protection has improved and automation reduces manual security tasks
The best features that Zscaler Cloud Firewall offers are that it is AI powered and automated. The automation especially reduces manual tasks as we used to have lots of manual activities for such services. Reporting is very powerful regarding the features of Zscaler Cloud Firewall. Zscaler Cloud Firewall has positively impacted my organization by increasing ROI, especially by reducing costs.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"We found some limitations with Fortinet FortiGate, and we are satisfied with Hillstone T-Series right now."
"The only firewall able to monitor traffic from a CCTV network. Can detect unauthorized devices plugged into the network, which standard firewalls can't do."
"Hillstone supports IOT setup and detecting intrusions from IOT or CCTV connectivity, and with this solution, we can also detect unauthorized devices plugged into the CCTV network and sound the alarm to the administrator."
"It has been stable so far."
"We installed Hillstone T-Series after a ransomware attack. The dashboard and user interface are very good."
"If malicious traffic attacks our on-premises servers, then it gets blocked by Zscaler Cloud Firewall."
"The solution is scalable."
"Zscaler Cloud Firewall understands the applications in the current generation and adapts to the present generation cloud applications."
"The product’s firewall and VPN package are fantastic compared to any other solution."
"Since it is really customizable, I can use it and avoid enabling access to the full network."
"It provides in-depth visibility into your network, ensuring that traffic flowing into your organization, be it from offices or individual users, is effectively filtered and secured through multiple layers of protection."
"With regards to ease, with regards to scalability, with regards to performance and support, those are the kind of top features that I would always look at and I have had a great experience in general."
"Includes advanced tech protection."
 

Cons

"Licensing is not cheap."
"They have a very good technical support team, but I think there are some communication issues due to language differences."
"Licensing is not cheap, but there are customers who will buy because they understand that this has a cost involved and they will cater their budget for that."
"Another loophole with Hillstone T-Series is that when we connect through WiFi and turn our hot spot on, all who connect through the hotspot get all the functions, and the security does not work."
"Zscaler Cloud Firewall should have a better understanding of all dynamic cloud applications."
"The needed improvements involve scalability, which is something I wish they would address."
"There are several areas for improvement. Firstly, the GUI is outdated, with noticeable lags and delays, especially when generating reports for past transactions."
"The issue right now is probably that Zscaler is not providing web browser isolation."
"Certain criteria need to be met if you want to scale this solution."
"It would be better if they improved their policy, package visibility, and flexibility while we're creating rules for inspection. It could also be cheaper or more things could be included in the basic package. In the next release, I would like better coverage in the Asia Pacific region and better quality of service."
"If I can get rid of Jetscaler, I will use Twingate for sure."
"The issue right now is probably that Zscaler is not providing web browser isolation. Another solution, Menlo, offers this. For one customer, we had to send traffic to Menlo to do the isolation for us. It was requested by the customer so that they could integrate any iframe. Zscaler needs to add this type of feature in their next release."
 

Pricing and Cost Advice

"We got a much cheaper price than that provided by Fortinet right now."
"On a scale from one to ten, with one being low and ten being high price, I would rate the price of Hillstone T-Series at three. There are no additional costs other than renewal costs."
"There are licensing costs, and I would not say that it's a cheap vendor."
"The product is a bit expensive compared to the solutions offered by its competitors, like Palo Alto. There is a need to make yearly payments towards the license in charges associated with the product."
"It is expensive for small businesses."
"On a scale from one to ten, where one is cheap, and ten is expensive, I rate the solution's pricing an eight out of ten."
"It comes at a significantly reduced cost while ensuring control and effectiveness."
"There are different subscription models available."
"It is not the most budget-friendly solution, but it's important to consider its overall value."
"The licensing is on a yearly basis. It is somewhere around 30 or 40 pounds per user for our organization."
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Top Industries

By visitors reading reviews
Construction Company
15%
Comms Service Provider
15%
Manufacturing Company
9%
Healthcare Company
9%
Manufacturing Company
11%
Construction Company
10%
Outsourcing Company
9%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise2
Large Enterprise13
 

Questions from the Community

Ask a question
Earn 20 points
Which lesser known firewall product has the best chance at unseating the market leaders?
Netscope, Zscaler if they continue route they are on now. FIrewalls needs great deal of automation on each end, datacenter and endpoint. In between you have branch office. So blending EPP and firew...
What is your experience regarding pricing and costs for Zscaler Cloud Firewall?
My experience with pricing, setup cost, and licensing was fine.
What needs improvement with Zscaler Cloud Firewall?
I think Zscaler Cloud Firewall can be improved by adding more features. The needed improvements involve scalability, which is something I wish they would address.
 

Also Known As

Hillstone T-Series Intelligent Next-Generation Firewalls, Hillstone iNGFW
No data available
 

Overview

 

Sample Customers

University of Córdoba
Zenith Live, Azure, Carlsberg Group
Find out what your peers are saying about Hillstone T-Series vs. Zscaler Cloud Firewall and other solutions. Updated: September 2026.
915,341 professionals have used our research since 2012.